用Python写一个能出现许多渐变色爱心的代码

import turtle
import random

# 设置画布大小
turtle.setup(800, 600)

# 创建画笔对象
pen = turtle.Turtle()

# 隐藏画笔
pen.hideturtle()

# 设置画笔速度
pen.speed(0)

# 设置起点位置
pen.up()
pen.goto(-300, 0)
pen.down()

# 定义心形函数
def heart(size):
    pen.begin_fill()
    pen.left(45)
    pen.forward(size)
    pen.circle(size/2, 180)
    pen.right(90)
    pen.circle(size/2, 180)
    pen.forward(size)
    pen.end_fill()

# 定义渐变色函数
def gradient_color(start_color, end_color, step):
    color_list = []
    for i in range(3):
        start = start_color[i]
        end = end_color[i]
        step_size = (end - start) / step
        color_list.append(start)
        for j in range(1, step):
            color = round(start + step_size * j)
            color_list.append(color)
        color_list.append(end)
    return color_list

# 定义随机颜色函数
def random_color():
    r = random.randint(0, 255)
    g = random.randint(0, 255)
    b = random.randint(0, 255)
    return (r, g, b)

# 循环绘制爱心
for i in range(30):
    # 随机生成渐变色
    start_color = random_color()
    end_color = random_color()
    color_list = gradient_color(start_color, end_color, 50)
    
    # 设置填充颜色
    pen.fillcolor(start_color)
    
    # 绘制渐变色爱心
    size = random.randint(50, 150)
    for j in range(50):
        pen.fillcolor(color_list[j*3:j*3+3])
        heart(size)
        size -= 2

# 点击关闭窗口
turtle.exitonclick()

效果如下：